enigma, C# - rextester

enigma

//Rextester.Program.Main is the entry point for your code. Don't change it.
//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

namespace Rextester
{
    public class Program
    {
        static String mMessage = "Esperar algo mejor para el futuro me parece una fantasia.  La naturaleza humana no cambia.";
        
        
        public class Rotor
        {
            static int mPrime = 122949823;
            int[] mEncode, mDecode;
            int mMax, mPosition;
            
            public Rotor(int pMax)
            {
                mPosition = 0;
                mMax = pMax;
                mEncode = new int[mMax];
                mDecode = new int[mMax];
                InitRotor();
            }
            
            void InitRotor()
            {
                List<int> oIndexes = new List<int>();
                for (int i=0; i<mMax; i++)
                    oIndexes.Add(i);
                for (int i=0; i<mMax; i++)
                {
                    int iIndex = (mPrime % (mMax+1-i)) - 1;
                    mEncode[i] = oIndexes[iIndex] - i;
                    mDecode[oIndexes[iIndex]] = i - oIndexes[iIndex];
                    oIndexes.RemoveAt(iIndex);
                }
                /*
                Console.WriteLine("Init ------------------");
                for (int i=0; i<mMax; i++)
                {
                    Console.Write(mEncode[i]);
                    Console.Write("  ");
                    Console.WriteLine(mDecode[i]);
                }
                Console.WriteLine("------------------");
                */
            }
            
            public int GetEncodedInt(int iVal)
            {
                int iIndex = (mPosition + iVal) % mMax;
                int iResult = (iVal + mEncode[iIndex] + mMax) % mMax;
                return iResult;
            }
            public int GetDecodedInt(int iVal)
            {
                int iIndex = (mPosition + iVal) % mMax;
                int iResult = (iVal + mDecode[iIndex] + mMax) % mMax;
                return iResult;
            }
            
            
            public bool Rotate()
            {
                mPosition++;
                if (mPosition >= mMax)
                {
                    mPosition = mPosition % mMax;
                    return true;
                }
                return false;
            }

public void SetPosition(int pPos)
            {
                mPosition = pPos;
            }
        }
        
        
        
        public class EnigmaMachine
        {
            Rotor[] mRotors;
            int mRotorMax = 5;
            int mValueMax = 300;
            
            public EnigmaMachine()
            {
                mRotors = new Rotor[mRotorMax];
                for (int i=0; i<mRotorMax; i++)
                {
                    mRotors[i] = new Rotor(mValueMax);
                }
            }
            
            public void Reset()
            {
                for (int i=0; i<mRotorMax; i++)
                    mRotors[i].SetPosition(0);
            }
            
            void Rotate()
            {
                bool bFullTurn = true;
                for (int i=0; i<mRotorMax && bFullTurn; i++)
                    bFullTurn = mRotors[i].Rotate();
            }
            
            
            public int Encode(int pVal)
            {
                int iValue = pVal;
                for (int i=0; i<mRotorMax; i++)
                    iValue = mRotors[i].GetEncodedInt(iValue);
                Rotate();
                return iValue;
            }
            
            public int Decode(int pVal)
            {
                int iValue = pVal;
                for (int i=0; i<mRotorMax; i++)
                    iValue = mRotors[mRotorMax-1-i].GetDecodedInt(iValue);
                Rotate();
                return iValue;
            }
            
        }

public static void Main(string[] args)
        {
            int n = 12;
            Rotor oRotor = new Rotor(n);
            int[] iCoded = new int[n];
            for (int i=0; i<n; i++)
            {
                iCoded[i] = oRotor.GetEncodedInt(7);
//                iCoded[i] = oRotor.GetEncodedInt(7);
                Console.WriteLine(iCoded[i]);
            }
            Console.WriteLine("----------");
            oRotor.SetPosition(0);
            for (int i=0; i<n; i++)
            {
                int iVal = oRotor.GetDecodedInt(iCoded[i]);
                Console.WriteLine(iVal);
            }

n = 30000;
            EnigmaMachine oEnigma = new EnigmaMachine();
            iCoded = new int[n];
            for (int i=0; i<n; i++)
            {
                iCoded[i] = oEnigma.Encode(145);
            }
            Console.WriteLine("----------");
            oEnigma.Reset();
            for (int i=0; i<n; i++)
            {
                if (oEnigma.Decode(iCoded[i]) != 145)
                {
                    i = n;
                    Console.WriteLine("FAILED");
                    return;
                }
            }
            Console.WriteLine("success");
            
            
        }
    }
}


run \| edit \| history \| help	0